Switch to pnpm (#305)

* Switch to pnpm

* maybe fix

* maybe fix

* Oops, no cjs

* Fix tests

.github/actions/build-frontend/action.yml

@@ -1,6 +1,9 @@
 name: build-frontend
 description: Builds the frontend and uploads it as an artifact
 inputs:
+  pnpm-version:
+    description: 'pnpm version to use'
+    required: true
   node-version:
     description: 'NodeJS runtime version to use'
     required: true
@@ -18,21 +21,42 @@ runs:
           frontend
         path: ${{ github.repository }}
 
+    - uses: pnpm/action-setup@v4
+      name: Install pnpm
+      with:
+        version: ${{ inputs.pnpm-version }}
+        run_install: false
+
     - uses: actions/setup-node@v4
       with:
-        node-version: ${{ inputs.node-version }}
-        cache: 'npm'
-        cache-dependency-path: ./frontend/package-lock.json
+        node-version-file: ./frontend/.nvmrc
+        cache: 'pnpm'
+        cache-dependency-path: ./frontend/pnpm-lock.yaml
 
     - name: Install dependencies
       working-directory: ./frontend
       shell: bash
-      run: npm ci
+      run: pnpm install --frozen-lockfile --strict-peer-dependencies
+
+    - name: Check
+      working-directory: ./frontend
+      shell: bash
+      run: pnpm run check
+
+    - name: Install playwright
+      working-directory: ./frontend
+      shell: bash
+      run: pnpx playwright install --with-deps
+
+    - name: Test
+      working-directory: ./frontend
+      shell: bash
+      run: pnpm test
 
     - name: Build
       working-directory: ./frontend
       shell: bash
-      run: npm run build
+      run: pnpm run build
 
     - name: Upload artifacts
       uses: actions/upload-artifact@v4

.github/scripts/get-vars.js

@@ -1,8 +1,8 @@
-const fs = require('fs');
-const ini = require('ini');
-const semver = require('semver');
-const core = require('@actions/core');
-const child_process = require('child_process');
+import fs from 'fs';
+import ini from 'ini';
+import semver from 'semver';
+import core from '@actions/core';
+import child_process from 'child_process';
 
 // Get branch name
 const gitRef = process.env.GITHUB_REF;

.github/scripts/package.json

@@ -1,17 +1,23 @@
 {
   "name": "get-variables",
   "version": "1.0.0",
-  "description": "",
+  "private": true,
+  "type": "module",
   "main": "src/index.ts",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },
-  "author": "",
-  "license": "ISC",
   "dependencies": {
     "@actions/core": "^1.10.1",
     "@actions/github": "^6.0.0",
     "ini": "^5.0.0",
     "semver": "^7.6.0"
+  },
+  "engines": {
+    "node": ">=20.18",
+    "pnpm": ">=9"
+  },
+  "volta": {
+    "node": "20.18.0"
   }
 }